<template>
  <div class="role-manage">
    <div class="query-form">
      <el-form ref="form"
               :inline="true"
               :model="queryForm">
        <el-form-item label="角色名称"
                      prop="roleName">
          <el-input v-model="queryForm.roleName"
                    placeholder="请输入角色名称" />
        </el-form-item>
        <el-form-item>
          <el-button type="primary"
                     @click="getRoleList">查询</el-button>
          <el-button @click="handleReset('form')">重置</el-button>
        </el-form-item>
      </el-form>
    </div>
    <div class="base-table">
      <div class="action">
        <el-button type="primary"
                   @click="handleAdd"
                   v-has="'role-create'"><i class="el-icon-plus"></i> 创建</el-button>
      </div>
      <el-table :data="roleList"
                :header-cell-style="{borderColor: '#ddd', color: '#333', backgroundColor: '#eee'}"
                border
                stripe>
        <el-table-column v-for="item in columns"
                         :key="item.prop"
                         :prop="item.prop"
                         :label="item.label"
                         :width="item.width"
                         :formatter="item.formatter"
                         align="center">
        </el-table-column>
        <el-table-column label="操作"
                         width="260"
                         align="center">
          <template #default="scope">
            <el-button size="mini"
                       @click="handleEdit(scope.row)"
                       v-has="'role-create'">编辑</el-button>
            <el-button size="mini"
                       type="primary"
                       @click="handleOpenPermission(scope.row)"
                       v-has="'role-create'">设置权限</el-button>
            <el-button type="danger"
                       size="mini"
                       @click="handleDel(scope.row._id)"
                       v-has="'role-create'">删除</el-button>
          </template>
        </el-table-column>
      </el-table>
      <el-pagination class="pagination"
                     :page-sizes="[8,10,15,20]"
                     background
                     layout="total,sizes,prev,pager,next"
                     :total="pager.total"
                     :page-size="pager.pageSize"
                     @current-change="handleCurrentChange"
                     @size-change="handelSizeChange" />
    </div>
    <el-dialog title="新增角色"
               v-model="showModal"
               :close-on-click-modal="false"
               center>
      <el-form ref="dialogForm"
               :model="roleForm"
               label-width="100px"
               :rules="rules">
        <el-form-item label="角色名称"
                      prop="roleName">
          <el-input v-model="roleForm.roleName"
                    placeholder="请输入角色名称" />
        </el-form-item>
        <el-form-item label="备注"
                      prop="remark">
          <el-input type="textarea"
                    :rows="2"
                    v-model="roleForm.remark"
                    placeholder="请输入备注" />
        </el-form-item>
      </el-form>
      <template #footer>
        <span class="dialog-footer">
          <el-button @click="handleClose">取 消</el-button>
          <el-button type="primary"
                     @click="handleSubmit">确 定</el-button>
        </span>
      </template>
    </el-dialog>
    <!-- 权限弹框-->
    <el-dialog title="权限设置"
               v-model="showPermission"
               :close-on-click-modal="false"
               top="5vh">
      <el-form label-width="100px">
        <el-form-item label="角色名称">
          {{ curRoleName }}
        </el-form-item>
        <el-form-item label="选择权限">
          <el-tree ref="tree"
                   :data="menuList"
                   show-checkbox
                   node-key="_id"
                   default-expand-all
                   :props="{ label: 'menuName' }">
          </el-tree>
        </el-form-item>
      </el-form>
      <template #footer>
        <span class="dialog-footer">
          <el-button @click="showPermission = false">取 消</el-button>
          <el-button type="primary"
                     @click="handlePermissionSubmit">确 定</el-button>
        </span>
      </template>
    </el-dialog>
  </div>
</template>
<script>
import utils from "../utils/utils";
import { ElMessage, ElMessageBox } from 'element-plus'

export default {
  name: "role",
  data() {
    return {
      queryForm: {
        roleName: "",
      },
      columns: [{
        label: "角色名称",
        prop: "roleName",
      },
      {
        label: "备注",
        prop: "remark",
      },
      {
        label: "权限列表",
        prop: "permissionList",
        width: 200,
        formatter: (row, column, value) => {
          let names = [];
          let list = value.halfCheckedKeys || [];
          list.map((key) => {
            let name = this.actionMap[key];
            if (key && name) names.push(name);
          });
          return names.join(",");
        },
      },
      // {
      //     label: "更新时间",
      //     prop: "updateTime",
      //     formatter(row, column, value) {
      //         return utils.formateDate(new Date(value));
      //     },
      // },
      {
        label: "创建时间",
        prop: "createTime",
        formatter(row, column, value) {
          return utils.formateDate(new Date(value));
        },
      },
      ],
      roleList: [],
      pager: {
        total: 0,
        pageNum: 1,
        pageSize: 8,
      },
      showModal: false,
      action: "create",
      roleForm: {},
      rules: {
        roleName: [{
          required: true,
          message: "请输入角色角色名称",
        },],
      },
      // 权限展示
      showPermission: false,
      curRoleId: "",
      curRoleName: "",
      menuList: [],
      // 菜单映射表
      actionMap: {},
    };
  },
  mounted() {
    this.getRoleList();
    this.getMenuList();
  },
  methods: {
    // 角色列表初始化
    async getRoleList() {
      try {
        let { list, page } = await this.$api.getRoleList({
          ...this.queryForm,
          ...this.pager,
        });
        this.roleList = list;
        this.pager.total = page.total;
      } catch (e) {
        throw new Error(e);
      }
    },
    // 菜单列表初始化
    async getMenuList() {
      try {
        let list = await this.$api.getMenuList();
        this.menuList = list;
        this.getActionMap(list);
      } catch (e) {
        throw new Error(e);
      }
    },
    // 表单重置
    handleReset(form) {
      this.$refs[form].resetFields();
      this.getRoleList()
    },
    // 角色添加
    handleAdd() {
      this.action = "create";
      this.showModal = true;
    },
    // 角色编辑
    handleEdit(row) {
      this.action = "edit";
      this.showModal = true;
      this.$nextTick(() => {
        this.roleForm = {
          _id: row._id,
          roleName: row.roleName,
          remark: row.remark,
        };
      });
    },
    // 角色删除
    async handleDel(_id) {
      ElMessageBox.confirm(
        '是否确定删除?',
        '提醒', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning',
      }
      )
        .then(async () => {
          await this.$api.roleOperate({ _id, action: "delete" });
          this.$message.success("删除成功");
          this.getRoleList();
        })
        .catch(() => { })

    },
    // 弹框关闭
    handleClose() {
      this.handleReset("dialogForm");
      this.showModal = false;
    },
    // 角色提交
    handleSubmit() {
      this.$refs.dialogForm.validate(async (valid) => {
        if (valid) {
          let { roleForm, action } = this;
          let params = { ...roleForm, action };
          let res = await this.$api.roleOperate(params);
          if (res) {
            this.showModal = false;
            this.$message.success("创建成功");
            this.handleReset("dialogForm");
            this.getRoleList();
          }
        }
      });
    },
    handleCurrentChange(current) {
      this.pager.pageNum = current;
      this.getRoleList();
    },
    handelSizeChange(current) {
      this.pager.pageSize = current
      this.getRoleList();
    },
    handleOpenPermission(row) {
      this.curRoleId = row._id;
      this.curRoleName = row.roleName;
      this.showPermission = true;
      let { checkedKeys } = row.permissionList;
      setTimeout(() => {
        this.$refs.tree.setCheckedKeys(checkedKeys);
      });
    },
    async handlePermissionSubmit() {
      let nodes = this.$refs.tree.getCheckedNodes();
      let halfKeys = this.$refs.tree.getHalfCheckedKeys();
      let checkedKeys = [];
      let parentKeys = [];
      nodes.map((node) => {
        if (!node.children) {
          checkedKeys.push(node._id);
        } else {
          parentKeys.push(node._id);
        }
      });
      let params = {
        _id: this.curRoleId,
        permissionList: {
          checkedKeys,
          halfCheckedKeys: parentKeys.concat(halfKeys),
        },
      };
      await this.$api.updatePermission(params);
      this.showPermission = false;
      this.$message.success("设置成功");
      this.getRoleList();
    },
    getActionMap(list) {
      let actionMap = {};
      const deep = (arr) => {
        while (arr.length) {
          let item = arr.pop();
          if (item.children && item.action) {
            actionMap[item._id] = item.menuName;
          }
          if (item.children && !item.action) {
            deep(item.children);
          }
        }
      };
      deep(JSON.parse(JSON.stringify(list)));
      this.actionMap = actionMap;
    },
  },
};
</script>

<style lang="scss">
.pagination {
  display: flex;
}
</style>